Finding the Fourth Proportional to 497,472,145.21, 746,303,862.62 and 190,740,337.57
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Solution
The fourth proportional to 497,472,145.21, 746,303,862.62 and 190,740,337.57 is: 286,147,178.40
Step by Step Solution
- Step 1: Write the proportion equation
497,472,145.21 : 746,303,862.62 = 190,740,337.57 : x - Step 2: Convert to fraction form
497,472,145.21/746,303,862.62 = 190,740,337.57/x - Step 3: Cross multiply
497,472,145.21x = 746,303,862.62 × 190,740,337.57 - Step 4: Simplify right side
497,472,145.21x = 142,350,250,685,933,696 - Step 5: Solve for x
x = 142,350,250,685,933,696/497,472,145.21 - Step 6: Final answer
x = 286,147,178.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.